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- Utilizing peculiarities of platform cluster well groups the cross operation technique of riser pipe, surface and oil formation is executed to improve drilling efficiencies. 充分利用平台丛式井组特点，施行隔水管、表层及油层交叉作业工艺，提高了钻井效率；
- The genetic algorithm model adopts some cross methods such as downwards extrapolate,upwards extrapolate and nonuniform cross operator. 在遗传算法模型中采用了向下、向上外推和非一致杂交算子等交叉技术,并结合内插、交换等多种技术形成综合交叉方式。
- The symbol encoding style what was needed for the optimization apportion model was solved, and selection operator, cross operator and mutation operator were designed concretely. 解决了优化分配模型所需的符号编码方式，并给出了相关的选择、交叉、变异等遗传算子的具体设计。
- So crossing operation shou ld be taken w ith fish ing m agnet and recyc le fish ing basket in one well repairing operating. 每口井需要用强磁打捞器和循环打捞篮进行多次交叉作业,每次打捞出的数量少,效率低,且打捞很不彻底,导致后续工序进行困难。
- It is rash to cross the street without looking both ways. 不朝两边看看就穿马路是莽撞的。
- Cross and angry words in family grate upon the ear. 不高兴与生气的话在一个家庭里令人不愉快。
- He's mending nicely after his operation. 手术后他正在顺利康复。
- A mule is a cross between a horse and an ass. 骡是马和驴交配而生的杂种。
- The Red Cross dealt out food to hungry soldiers. 红十字会把食物分发给饥饿的士兵。
- He is in charge of the operation of the steel mill. 他负责这家钢厂的经营工作。
- The bank plan a rescue operation for the company. 银行计划对这个公司采取挽救措施。
- This cross marks the spot where she died. 这个十字符号标明她死去的地点。
- The operation was a marvel of medical skill. 这个手术是医术的一个非凡范例。
- He made expiation for our sins on the cross. 他在十字架上为我们赎了罪。
- An operation is needed to remove your tonsil. 需要进行手术摘除你的扁桃体。
- Mind out for the traffic when you cross the road. 过马路要注意来往车辆。
- The improved binary version of PSO referenced the crossing operator of genetic algorithm and the worst particle was taken the place of by a new one. 改进的二进制PSO算法引入遗传算法的交叉算子，同时对于种群中适应度最低的粒子，用新产生的粒子代替。
- Passengers mustn't cross the rails. 乘客不得横过铁路。
- The operation went like clockwork. 手术进行得极为顺利。
- You had better cross out the last name. 你最好把最后一个名字划掉。
